Main areas of scientific interest include earthquake ground motions, triggered earthquakes, historical earthquakes, and intraplate seismic hazard and seismogenesis. I am also interested in science communication for a broad audience, and development of technical capacity in developing countries including Haiti and Myanmar. Received AB degree in geophysics from UC Berkeley (1982) and PhD in Earth sciences from Scripps Institution of Oceanography (1988). Published over 100 peer-reviewed articles, including 12 in AGU journals; and five books for non-specialist audiences.